Skin Cancer
Examining moles according to the ABCDE rule and using sun protection as skin cancer prevention

Although melanoma (black skin cancer—which is mainly caused by UV rays from the sun) accounts for only about 10% of new skin cancer cases in Switzerland each year, it is particularly dangerous because it can lead to life-threatening metastases in lymph nodes and organs. Here, prevention and early detection can save lives!

About one-third of all melanomas develop from moles. Therefore, regular checks of your moles (at least once a month) are a very important part of cancer prevention. The easiest way to do this is by following the easy-to-remember ABCDE rule (sometimes called the ABCD rule):

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Asymmetry

Melanomas often grow unevenly in one direction, which is why an asymmetrical shape can be an indicator.

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Diameter

A diameter of 6 mm or more may indicate melanoma. 

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Border

Irregular, jagged, or blurred edges may be a sign of melanoma.

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Evolution

Growth or changes in shape, color, or thickness can be signs of malignant skin cancer.  

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Color

Uneven or patchy coloring can indicate melanoma.

Very important:

Don't hesitate to contact your dermatologist or general practitioner immediately if you notice any unusual changes!

Consistent sun protection—ideally all year round—is key to preventing skin cancer. The following tips can help you protect yourself from skin cancer caused by sunlight:

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Avoid the midday sun and stay in the shade between 11 a.m. and 3 p.m. About 60% of the sun’s rays occur during this time.

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Wear protective clothing (this includes a hat or cap and sunglasses). Densely woven, long-sleeved shirts and long pants offer the best protection.

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Pay attention to the UV index. A high UV index means intense sunlight and requires stronger protection.

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Keep in mind that reflective surfaces, such as snow, water, or sand, increase the intensity of the radiation. Use comprehensive sun protection tailored to you and the situation, providing both reliable protection and a high level of comfort.
 

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Choose a sufficiently high sun protection factor (SPF) and always apply enough sunscreen.

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Children’s skin is particularly sensitive and requires special protection. Never expose your baby or toddler to the sun without protection and try to stay in the shade—especially between 11 a.m. and 3 p.m. Use protective clothing and always a sunscreen specifically formulated for highly sensitive children’s skin.